Abstract
In Japan, most of the real time distance learning systems constructed over JGN (Japan Gigabit Network) are simple applications of video conference system equipped with high-quality audio/video transmission equipment. Such systems are not modeled to add distance educational support such as real time floor control, and are insufficient and inefficient to perform real time distance lecture or seminar when the number of sites get larger. This paper proposes a Working Model for distributed computer systems supporting real-time interactive distance lectures or seminars over JGN. As an application of the working model, functions for floor control and tele-presentation were discussed. The utility of the proposed working model was confirmed with an experimental system.
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